package/base-files/files/etc/init.d/sysfixtime

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2013-2014 OpenWrt.org
   3
   4 START=00
   5 STOP=90
   6
   7 RTC_DEV=/dev/rtc0
   8 HWCLOCK=/sbin/hwclock
   9
  10 boot() {
  11         hwclock_load
  12         local maxtime="$(find_max_time)"
  13         local curtime="$(date +%s)"
  14         if [ $curtime -lt $maxtime ]; then
  15                 date -s @$maxtime
  16                 hwclock_save
  17         fi
  18 }
  19
  20 start() {
  21         hwclock_load
  22 }
  23
  24 stop() {
  25         hwclock_save
  26 }
  27
  28 hwclock_load() {
  29         [ -e "$RTC_DEV" ] && [ -e "$HWCLOCK" ] && $HWCLOCK -s -u -f $RTC_DEV
  30 }
  31
  32 hwclock_save(){
  33         [ -e "$RTC_DEV" ] && [ -e "$HWCLOCK" ] && $HWCLOCK -w -u -f $RTC_DEV && \
  34                 logger -t sysfixtime "saved '$(date)' to $RTC_DEV"
  35 }
  36
  37 find_max_time() {
  38         local file newest
  39
  40         for file in $( find /etc -type f ) ; do
  41                 [ -z "$newest" -o "$newest" -ot "$file" ] && newest=$file
  42         done
  43         [ "$newest" ] && date -r "$newest" +%s
  44 }